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saul85 [17]
3 years ago
7

How can you solve quadratic equations in one variable?

Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0

you can use formular method or factorisation but formular method is easy and convinient

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The sum of two consecutive odd integers is<br> - 108. Find the two integers.
Ulleksa [173]

Answer:

-55 and -53

Step-by-step explanation:

5 0
2 years ago
What are the answers to 2 and 4
Pavel [41]
2. y = -4x + 1 so slope m = -4

passing thru (3,-1)
y = mx + b
-1 = -4(3) + b
-1 = -12 + b
11 = b or b = 11

answer:
equation: y =  -4x + 11

4. 
answer is a. -2, 1/2 opposite reciprocal


b. 1/4 , 4 ..... only reciprocal
c. 5, -5..........only opposite
3 0
3 years ago
Solve the system of equations 3x = 84 - 2y 9x = 8y - 24
Eduardwww [97]

Answer:

3x = 84 - 2y -  -  - (i) \\ 9x = 8y - 24 -  -  -  - (ii) \\ from \: (ii) \\ 3(3x) = 8y - 24 \\ but \: from \: (i) \:  \: 3x = 84 - 2y \\ hence \: put \: (i) \: in \: (ii) \\ 3(84 - 2y) = 8y - 24 \\ 252 - 6y = 8y - 24 \\ 276 = 14y \\ y =  \frac{138}{7}  \\ x =  \frac{104}{7}

8 0
3 years ago
What is the missing length??
amid [387]

Answer

The missing length is 10

Step-by-step explanation:

Represent the missing length with x

The sides of the given shape are directly proportional.

Mathematically:

(15 + x) to (12 + 8) and x to 7

Represent as a ratio:

(15 + x) : (12 + 8) = x : 8

15 + x : 20= x : 8

Convert to fraction

\frac{15 + x}{20} = \frac{x}{8}

Cross Multiply:

(15 + x)*8 = 20 * x

120 + 8x = 20x

Collect Like Terms

20x - 8x = 120

12x = 120

Solve for x

x = \frac{120}{10}

x = 10

<em>The length of the missing side is 10</em>

4 0
3 years ago
Is this expression equivalent to 1.5?<br><br> 0.15 / 10<br><br> (0.15 divided by 10)
dimulka [17.4K]

Answer:

False

Step-by-step explanation:

0.15/10 equals 0.015

6 0
2 years ago
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